Fireproof, waterproof and anti-corrosion high-performance cement-based mortar for steel structure

The invention relates to fireproof, waterproof and anti-corrosion high-performance cement-based mortar for a steel structure. The fireproof, waterproof and anti-corrosion high-performance cement-based mortar comprises the following raw materials in parts by weight: 550-600 parts of pottery sand; 20 to 50 parts of microbeads; 450 to 550 parts of cement; silica fume accounts for 25% of the cement; latex, the solid mass of which accounts for 4-10% of the cement and silica fume; the solid mass of the water reducing agent accounts for 0.7-1% of the cement and the silica fume; the mass of the defoaming agent accounts for 0.2-0.3% of the mass of the cement and the silica fume; not less than 27 parts of basalt fiber; the mass of the water accounts for 20-25% of the mass of the cement and the silica fume. The heat conductivity coefficient and fire resistance of the mortar are reduced by doping the pottery sand, the mortar is prevented from cracking at different temperatures by doping the basalt fiber, and the mortar h